82722386 has 4 divisors (see below), whose sum is σ = 124083582. Its totient is φ = 41361192.

The previous prime is 82722383. The next prime is 82722433. The reversal of 82722386 is 68322728.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61387225 + 21335161 = 7835^2 + 4619^2 .

It is not an unprimeable number, because it can be changed into a prime (82722383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20680595 + ... + 20680598.

Almost surely, 2^82722386 is an apocalyptic number.

82722386 is a deficient number, since it is larger than the sum of its proper divisors (41361196).

82722386 is a wasteful number, since it uses less digits than its factorization.

82722386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41361195.

The product of its digits is 64512, while the sum is 38.

The square root of 82722386 is about 9095.1847699758. The cubic root of 82722386 is about 435.7201898229.

The spelling of 82722386 in words is "eighty-two million, seven hundred twenty-two thousand, three hundred eighty-six".